Home / 1,186,223.94-1,637,388.27-721,076.22

Finding the Fourth Proportional to 1,186,223.94, 1,637,388.27 and 721,076.22

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Solution

The fourth proportional to 1,186,223.94, 1,637,388.27 and 721,076.22 is: 995,327.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,223.94 : 1,637,388.27 = 721,076.22 : x
  2. Step 2: Convert to fraction form
    1,186,223.94/1,637,388.27 = 721,076.22/x
  3. Step 3: Cross multiply
    1,186,223.94x = 1,637,388.27 × 721,076.22
  4. Step 4: Simplify right side
    1,186,223.94x = 1,180,681,744,403.94
  5. Step 5: Solve for x
    x = 1,180,681,744,403.94/1,186,223.94
  6. Step 6: Final answer
    x = 995,327.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.